The next trilogy of Halloween films moved Haddonfield, Illinois all the way from South Pasadena, California to Salt Lake City, Utah! During the opening of Halloween 4, we see Smiths Grove Sanitarium...

Jamie's elementary school is seen several times throughout the movie...

Sheriff Meeker's house is a primary location for the movie and involves a great rooftop chase scene.

Jamie Lloyd's house was painted red at the time of filming and was used in Halloween 5 as well. This house was also seen in the television adaption of Stephen King's The Stand.

The disastrous Halloween 5 can be summed up by the next few pictures. The Myers house nearly tripled in size. Fortunately, the film didn't use the current color palette as the current owners...

All of these are in Salt Lake City: Ridgemont Sanitarium is at 400 East Capital Park Avenue. The Caruthers house is at 509 3rd Avenue. The school is at 1300 E 700 South. Sheriff Meeker's house is at 607 2nd Avenue.

Wait, H6 never retconned anything in H4. What exactly is being discussed here? Ridgemont is the hospital in which Myers was being taken from in H4. The ambulance is crashed on the way back to Smith's Grove. It's never seen in the film.

Halloween 6 features Smith's Grove heavily. Ridgemont is never seen or heard from in that film.